Plant cells usually divide and then increase in size
A. true
B. false
A
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In rats, the P gene allele for pigmentation (P) is dominant to the allele for albinism (p). The B gene allele for black pigmentation (B) is dominant to the allele for cream pigmentation (b). The pp homozygous recessive genotype is epistatic to any allele combination at gene B. Predict the genotypes and phenotypes of the F1 progeny of a cross between a pure-breeding black rat and an albino that is also homozygous for cream.
A) PP BB, black B) Pp Bb, black C) Pp Bb, albino D) pp Bb, albino
Particularly with regard to gas exchange, why do we have respiratory and cardiovascular systems, but flatworms, which are only a few cells thick, don't?
What will be an ideal response?
ATP is called the energy currency of the body because it is a type of electricity.
Answer the following statement true (T) or false (F)
Infected, but shows no symptoms of disease
A. Passive Carrier B. Asymptomatic Carrier C. Convalescent Carrier D. Chronic Carrier E. Incubating Carrier